some of them went to washington today to try to help push for new gun laws. lisa sylvester is picki ining u this part of the story. lisa? >> wolf, these families, they all have a message. they have been through hell and they want gun violence to stop. one dad who lost his son in columbine wore the very shoes his son was wearing that day. others brought pictures of their loved ones and they all have their own deeply heartbreaking stories. >> i'm the father of daniel mauser, who was killed in the massacre at columbine high school. >> my sister was a freshman at virginia tech. she followed me there. >> our daughter, jessica redfield ghawi was killed in aurora on july 20th of this year. >> reporter: a club no one wanted to join. each one directly touched by gun violence. columbine, aurora, virginia tech, tucson. peter reid's daughter was a freshman at virginia tech. >> god forgive us as a country if it takes a literal slaughter of innocents in a holy season to wake us up. >> reporter: the slaying of 6-year-olds and 7-year-olds in newtown, connecticut, has been de